Yikes! It looks like a huge Grey's Anatomy spoiler leaked ahead of time when an issue of Entertainment Weekly -- which details a major story arc of one of the show's main characters -- was sent out prematurely. We're about to get into it, so this is your first, official and only spoiler alert. In the wise words of Taylor Swift, because she probably trademarked the phrase by now: Don't say we didn't, say we didn't warn you.

According to E! News, a fan somehow got her hands on the leaked issue and posted a photo online. The huge spoiler for the show? It looks like Patrick Dempsey's character, Derek Shepherd aka McDreamy, is about ready to exit the show.

The fan posted a photo of the issue on Instagram, and then attached a caption to the image detailing how upset she was to be spoiled, unaware of the fact that the issue reached her a day early. She wrote, "how are you going to put that little, tiny, microscopic spoiler alert warning next to a full page picture of the smokin' hot @patrickdempsey and expect people to notice it!?! You literally just RUINED one of the most important moments of @greysabc in the history of the show!! I'm so FURIOUS right now that if I was also fast I'd be filming with Vin Diesel for the 8th installment. I'm seriously considering canceling my subscription. Is that an overreaction? @shondarhimes Am I right?"

For its part, Entertainment Weekly apologized for the error, saying, "We are surprised that an EW subscriber may have received their issue a day earlier than planned. We always try our best to bring readers exclusive news first. We would like to apologize to fans of the show that learned the news ahead of time."

Fans of the show -- and of Dempsey's in particular -- may have seen this coming. According to Page Six, Dempsey's character might have been written off the show entirely because of the actor's reported "diva" behavior.

The episode in question airs tonight (April 23) at 8PM EST on ABC.

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